Showing 2026Show all
2 papers · 1 filter
math.KT2026
An Abstract Index Theorem via Rees Algebras
Eugenio Landi
We develop a purely algebraic framework for index-type theorems based on the Rees construction for filtered differential graded algebras (FDGAs). Alongside the classical Rees modul…
math.RT2026
A categorification of Kauffman states for planar graphs
Giovanni Cerulli Irelli, Domenico Fiorenza, Eugenio Landi +1
Given a decorated planar graph , where is a planar graph and with the directed medial graph of , we call some ang…